55122265 has 16 divisors (see below), whose sum is σ = 72881856. Its totient is φ = 39688000.

The previous prime is 55122241. The next prime is 55122289. The reversal of 55122265 is 56222155.

It is an interprime number because it is at equal distance from previous prime (55122241) and next prime (55122289).

It is not a de Polignac number, because 55122265 - 2¹⁵ = 55089497 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 594 + ... + 10516.

It is an arithmetic number, because the mean of its divisors is an integer number (4555116).

Almost surely, 2^55122265 is an apocalyptic number.

55122265 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55122265 is a deficient number, since it is larger than the sum of its proper divisors (17759591).

55122265 is a wasteful number, since it uses less digits than its factorization.

55122265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10040.

The product of its digits is 6000, while the sum is 28.

The square root of 55122265 is about 7424.4370156935. The cubic root of 55122265 is about 380.5768362981.

It can be divided in two parts, 5512 and 2265, that added together give a palindrome (7777).

The spelling of 55122265 in words is "fifty-five million, one hundred twenty-two thousand, two hundred sixty-five".